#!/bin/sh
# This file is heavily based on code from https://github.com/Xentrk/netflix-vpn-bypass/blob/master/IPSET_Netflix.sh

TARGET_IPSET='wan'

TARGET_URL="https://ip-ranges.amazonaws.com/ip-ranges.json"
TARGET_FNAME="/var/vpn-policy-routing_tmp_aws_ip_ranges"

_ret=1

if [ ! -s "$TARGET_FNAME" ]; then
	curl "$TARGET_URL" 2>/dev/null | grep "ip_prefix" | sed 's/^.*\"ip_prefix\": \"//; s/\",//' > "$TARGET_FNAME"
fi
if [ -s "$TARGET_FNAME" ]; then
	awk -v ipset="$TARGET_IPSET" '{print "add " ipset " " $1}' "$TARGET_FNAME" | ipset restore -! && _ret=0
fi
rm -f "$TARGET_FNAME"

return $_ret
